Question: What did Jacques Lacan study in the year 1919?
Paraphrase: What did Jacques Lacan think about within the year 1919?
SPARQL (Wikidata): SELECT ?obj WHERE { wd:Q169906 p:P69 ?s . ?s ps:P69 ?obj . ?s pq:P582 ?x filter(contains(YEAR(?x),'1919')) }